The Azure Key (#1)

The Corsair Uprising #1: The Azure Key (2014)

Liam Kidd was a freelancer for Vesta Corporation, Earth’s largest and
most corrupt asteroid mining company. Through a series of events he
finds himself working the mines, a fate worse than death. When an
opportunity presents itself, he and two other miners escape through a
nearby wormhole. They find themselves across the galaxy in the middle
of a conflict between three alien species. Liam’s only chance of
getting home lies in finding a device rumored to be capable of opening a
singularity. Now, he and his crew must face the horrors of war to
return to their own system, a challenge that might prove deadly.